Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S
The AirTAC JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø32mm bore and 125mm stroke, G1/8 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ32 mm
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM10×1.25
- CushionAdjustable, 20 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S
The hard-anodized aluminum extruded barrel sheds weight without external support rods.
The JSIJ32X125-20S features a 125 mm nominal extend stroke that you can shorten by up to 20 mm on-site, yielding a usable 105 to 125 mm range for fine-tuning the end position without swapping the cylinder. A built-in piston magnet works seamlessly with CMSE/DMSE sensors in the side grooves. Piped via a G1/8 port, it includes adjustable 20 mm air cushions at both ends to decelerate the load smoothly.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 20 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S Is Used
Actuator End-Stop Tuning
Dial in the exact 105 to 125 mm extend position on a small clamping fixture without machining new spacers or changing the cylinder.
Sensor-Ready Diverting
Leverage the built-in magnet and CMSE/DMSE switches to confirm position on a conveyor divert arm, adjusting the stroke window as product sizes change.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S the Right Cylinder?
The 20 mm external adjuster is ideal for sharing a spare across stroke variants or dialing in the exact end stop during machine commissioning. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because this unit has the -S magnet, it accepts CMSE/DMSE switches; a standard SKU without the S suffix cannot take a sensor. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X125-20S FAQ
At 0.5 MPa it pushes 402 N and pulls 345 N. At 0.7 MPa it pushes 563 N and pulls 483 N. The theoretical maximum force is 82 kgf at 1.0 MPa. This 32 mm bore cylinder uses a G1/8 air port and features a 12 mm rod with an M10x1.25 thread.
The 125 mm nominal stroke is the maximum extend length. The external stop screw lets you shorten the extend stroke by up to 20 mm on-site, giving a usable range of 105 to 125 mm so you can fine-tune the end position. The retract end remains fixed. Note that this stop only sets position; it does not hold the load on air loss, so use an external rod lock for vertical holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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